XHProf: Hierarchical Profiler Report

Diff Report: Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Database\Connection::query

Drupal\Core\Database\Connection::query	Run #5392041970f3f	Run #539201f8938f4	Diff	Diff%
Number of Function Calls	170	170	0	0.0%
Incl. Wall Time (microsec)	68,538	69,948	1,410	2.1%
Incl. Wall Time (microsec) per call	403	411	8	2.1%
Excl. Wall Time (microsec)	3,269	3,198	-71	-2.2%
Incl. CPU (microsecs)	25,750	25,879	129	0.5%
Incl. CPU (microsecs) per call	151	152	1	0.5%
Excl. CPU (microsec)	2,766	2,725	-41	-1.5%
Incl. MemUse (bytes)	244,644	244,608	-36	-0.0%
Incl. MemUse (bytes) per call	1,439	1,439	-0	-0.0%
Excl. MemUse (bytes)	-73,380	-73,392	-12	-0.0%
Incl. PeakMemUse (bytes)	268,548	268,304	-244	-0.1%
Incl. PeakMemUse (bytes) per call	1,580	1,578	-1	-0.1%
Excl. PeakMemUse (bytes)	32,636	32,656	20	0.1%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::query [View Callgraph Diff]

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. CPU Diff (microsec)	ICpu Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
Drupal\Core\Database\Connection::query	0	N/A%	1,410	96.2%	129	4.8%	-36	-0.1%	-244	-0.4%
Exclusive Metrics Diff for Current Function			-71	-5.0%	-41	-31.8%	-12	-33.3%	20	8.2%
*Parent functions*
Drupal\Core\Config\DatabaseStorage::readMultiple	0	N/A%	831	58.9%	-168	-130.2%	-8	-22.2%	-220	-90.2%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	598	42.4%	-54	-41.9%	-32	-88.9%	-36	-14.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-367	-26.0%	-54	-41.9%	0	0.0%	-56	-23.0%
Drupal\Core\Path\AliasStorage::lookupPathSource	0	N/A%	260	18.4%	57	44.2%	-8	-22.2%	-12	-4.9%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-186	-13.2%	80	62.0%	0	0.0%	-36	-14.8%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	138	9.8%	215	166.7%	0	0.0%	0	0.0%
Drupal\Core\Config\DatabaseStorage::listAll	0	N/A%	56	4.0%	-1	-0.8%	0	0.0%	20	8.2%
Drupal\user\UserStorage::addRoles	0	N/A%	52	3.7%	-17	-13.2%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::preloadPathAlias	0	N/A%	45	3.2%	30	23.3%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	-41	-2.9%	10	7.8%	0	0.0%	0	0.0%
Drupal\node\Access\NodeRevisionAccessCheck::checkAccess	0	N/A%	23	1.6%	2	1.6%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	1	0.1%	29	22.5%	12	33.3%	96	39.3%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	1,344	95.3%	81	62.8%	-32	-88.9%	-348	-142.6%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	88	6.2%	77	59.7%	12	33.3%	160	65.6%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	49	3.5%	34	26.4%	-4	-11.1%	-72	-29.5%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	0	0.0%	-22	-17.1%	0	0.0%	-4	-1.6%